| Name | Status | Population census 1991-03-01 | Population census 2001-03-01 | |
|---|---|---|---|---|
| Dibrugarh | District | 1,042,000 | 1,185,072 | o |
| Assam | State | 22,414,322 | 26,655,528 |
| Name | Status | District | City of Outgrowth | Population census 1991-03-01 | Population census 2001-03-01 | |
|---|---|---|---|---|---|---|
| Chabua | Town (Area) Committee | Dibrugarh | 6,104 | 17,433 | o | |
| Dibrugarh | Municipal Board | Dibrugarh | Dibrugarh | 120,127 | 121,893 | o |
| Duliajan Oil Town | Census Town | Dibrugarh | 17,017 | 23,763 | o | |
| Moran Town | Census Town | Dibrugarh | ... | 6,826 | o | |
| Naharkatiya | Town (Area) Committee | Dibrugarh | 15,052 | 15,523 | o | |
| Namrup | Census Town | Dibrugarh | 19,740 | 19,021 | o | |
| Niz - Mankata | Ward of Outgrowth | Dibrugarh | Dibrugarh | ... | 6,955 | o |
| Sarupathar Bengali | Census Town | Dibrugarh | ... | 6,609 | o |
Source: (1991) Rand McNally International Atlas 1994, School of Planning & Architecture (web).
(2001) Office of the Registrar General and Census Commissioner (web), Delimitation Commission of India (web).
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